https://sourceware.org/bugzilla/show_bug.cgi?id=17512
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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=041830e03cca866f12be18198898139e558ad31e
commit 041830e03cca866f12be18198898139e558ad31e
Author: Nick Clifton <ni...@redhat.com>
Date: Fri Nov 14 12:30:00 2014 +0000
More fixes for invalid memory accesses triggered by corrupt binaries.
PR binutils/17512
* dwarf.c (get_encoded_value): Add an 'end' parameter. Change the
'data' parameter to a double pointer and return the updated value.
(decode_location_expression): Update call to get_encoded_value.
(frame_need_space): Handle the case where one or both of the
mallocs fails.
(read_cie): Initialise the cie pointer, even if the read fails.
(display_debug_frames): Warn if the calculated block_end is before
the start of the block. Break the loop if the CIE could not be
read. Update call to get_encoded_value. Warn if the read CFA
expressions are too big.
* ieee.c (ieee_archive_p) Skip processing if no bytes are read at
all.
(ieee_object_p): Likewise.
-----------------------------------------------------------------------
Summary of changes:
bfd/ChangeLog | 7 +++++
bfd/ieee.c | 6 +++-
binutils/ChangeLog | 14 +++++++++++
binutils/dwarf.c | 65 +++++++++++++++++++++++++++++++++++++++------------
4 files changed, 74 insertions(+), 18 deletions(-)
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